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4/28/2014 9:16:40 AM EDT
I have a Spikes ST-15 16" LE M4 Carbine and have not started relaoding for it yet but plan do as I have just received all my dies etc... The rifle did not come with a tag to indicate where the HS was set and since I control how far I bump the shoulder back this in a pretty good number to know and I don't have the HS gages to measure it so is there a way to shut off the gas so I can sort of fire form the case to get a shoulder measurement, I have called Spikes and left a message
4/28/2014 9:46:10 AM EDT
[#1]
Just follow the instructions on your dies and adjust them appropriately.

In your average .223 barrel you aren't going to have any crazy issues.
4/28/2014 10:35:58 AM EDT
[#2]
Just follow the instructions on your dies and adjust them appropriately.

In your average .223 barrel you aren't going to have any crazy issues


This +1.

Ar's that I know of don't come with HS tags.  Just buy the gauges you need, shoot the rifle and use those cases.

Don't overthink this......................
4/28/2014 11:03:56 AM EDT
[#3]
I would not think I could get a true reading extracting the brass from a semi auto, for instance my M1A is HS at 1.631 so I bump the shoulder back to 1.626" but if I measure the brass coming out after firing I normally gain a few thousanths so since I don't have HS gages just looking for some insight, I guess I could strip the bolt and size until the lugs lock and ago another .005"
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